RHESSI Tohban report, 17-nov-2003 to 24-nov-2003
H. Hudson, hhudson@ssl.berkeley.edu

1. Solar Activity:

The second rotation of the big spot groups of late October was not
so impressive, but we still got many M-class flares:

How many GOES flares occurred?
Flares above B, C, M, X class were            2   45   10   0
And how many had good RHESSI coverage?
Flares above B, C, M, X class were            2   29    9   0
And how many are listed in the RHESSI flare_list?
Flares above B, C, M, X class were            2   29   10   0

How many RHESSI flares total?                 176

The most memorable event may have been the E limb "reconnection" event
of 10:00 18-nov-03, for which EIT could see a clear signature of CME
legs closing - a rare phenomenon that presumably implies relatively
rapid reconnection. It would be interesting to see what RHESSI sees.
Unfortunately I believe that TRACE was looking elsewhere just then.

2. Memory Managment:

We are really getting clobbered by particles. The SSR fill level only
came down to 37.647% Sunday evening. Most of the counts seem to come 
during the Berkeley passes, such that we can almost not keep up on
a given orbit. Accordingly the decimation levels did not change this
week. The later Berkeley passes were typically seeing both shutters
in from particle dead time.

3. Data Gaps:

GAP START TIME              GAP END TIME                   GAP (SEC)
2003-11-18T15:45:00.000 -- 2003-11-18T16:10:00.000       1500.0000
2003-11-18T16:15:00.000 -- 2003-11-18T17:35:00.000       4800.0000
2003-10-23T16:50:00.000 -- 2003-10-23T21:15:00.000       15900.000

Bad telemetry 23-Nov 12:26:02 (last plot available on QL browser)

4. Miscellaneous

The huge particle activity has provided a severe test for Jim's flare
finder software, no doubt the best in the business. You can judge its
success by the statistics above. One miss was where an M flare exactly
coincided with a huge particle event: 31-OCT-03  04:26 04:33 04:37  M2.0
Also there were several inexplicable misses on 20-nov 12:17
 
The accelerometer SOH plot has a hard-wired range that doesn't show
most of the current readings. See e.g.
http://sprg.ssl.berkeley.edu/~hessiops/state-of-health/recent/vc1/1/cryo_bal.html